//
//  UIButton+Extention.swift
//  sinaweibo
//
//  Created by icefs2 on 15/11/15.
//  Copyright © 2015年 icefs2. All rights reserved.
//

import UIKit

extension UIButton {
    convenience init(title: String,backImage: String?,color: UIColor?,image: String = "",size: CGFloat = 14) {
        
        //调用构造方法 实例化
        self.init()
        setTitle(title, forState: .Normal)
        if backImage != nil {
            setBackgroundImage(UIImage(named: backImage!), forState: .Normal)
            setBackgroundImage(UIImage(named: backImage! + "_highlighted"), forState: .Highlighted)
        }
        titleLabel?.font = UIFont.systemFontOfSize(size)
        setImage(UIImage(named: image), forState: .Normal)
        
        if color != nil {
            setTitleColor(color, forState: .Normal)
        }
        
    }}
